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1.发明授权Thermionic electron emitter containing thorium carbide,thorium oxide and zirconium carbide 失效含有碳酸氢氧化物，氧化亚铁和碳酸铅的THERMONIC电子发射体
公开(公告)号：US3706001A
公开(公告)日：1972-12-12
申请号：US3706001D
申请日：1971-03-15
Applicant: US ARMY
Inventor： NALL THOMAS J
CPC classification number: H01J1/14
Abstract: AN IMPROVED THERMIONIC ELECTRON EMITTER IS PROVIDED CONTAINING THORIUM CARBIDE, THORIUM OXIDE AND ZIRCONIUM CARBIDE.
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